PyErr_SetFromErrnoWithFilename(): New function which supports setting

warsaw · warsaw · commit 97d951533e71 · 1998-07-23T16:05:56.000Z
an exception from errno, with a supplied filename (primarily used by
IOError and OSError).  If class exceptions are used then the exception
is instantiated with a 3-tuple: (errno, strerror, filename).  For
backwards compatibility reasons, if string exceptions are used,
filename is ignored.

PyErr_SetFromErrno(): Implement in terms of
PyErr_SetFromErrnoWithFilename().
diff --git a/Python/errors.c b/Python/errors.c
@@ -277,22 +277,34 @@ PyErr_NoMemory()
 }
 
 PyObject *
-PyErr_SetFromErrno(exc)
+PyErr_SetFromErrnoWithFilename(exc, filename)
 	PyObject *exc;
+	char *filename;
 {
 	PyObject *v;
 	int i = errno;
 #ifdef EINTR
 	if (i == EINTR && PyErr_CheckSignals())
 		return NULL;
 #endif
-	v = Py_BuildValue("(is)", i, strerror(i));
+	if (filename != NULL && Py_UseClassExceptionsFlag)
+		v = Py_BuildValue("(iss)", i, strerror(i), filename);
+	else
+		v = Py_BuildValue("(is)", i, strerror(i));
 	if (v != NULL) {
 		PyErr_SetObject(exc, v);
 		Py_DECREF(v);
 	}
 	return NULL;
 }
+	
+
+PyObject *
+PyErr_SetFromErrno(exc)
+	PyObject *exc;
+{
+	return PyErr_SetFromErrnoWithFilename(exc, NULL);
+}
 
 void
 PyErr_BadInternalCall()
